Anker SOLIX C300 vs EcoFlow DELTA Max 2000
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
Anker SOLIX C300 costs $920 less. Whether that gap is worth closing depends on what you need to run.
- EcoFlow DELTA Max 2000 holds 600% more energy (2016Wh vs 288Wh), so it runs the same load proportionally longer.
- EcoFlow DELTA Max 2000 has 2800W more surge headroom (3400W vs 600W) — that decides whether a fridge, pump or AC compressor will actually start.
- Anker SOLIX C300 is 39.4 lb lighter (8.6 lb vs 48 lb).
- Anker SOLIX C300 uses LiFePO4 while the other uses NMC — roughly double the usable cycle life.
- Anker SOLIX C300 is rated for 3,000 cycles vs 800 — meaningful if you cycle it daily.
If you plan to cycle the battery daily, think twice about the EcoFlow DELTA Max 2000. Its NMC cells are rated for 800 cycles against the LiFePO4 rival's longer life — over years of regular use that's the more expensive unit, whatever the sticker says.
Anker's smallest. 288Wh at $179 with three USB-C ports — aimed squarely at people charging modern devices, not running appliances.
Best for: Content creators and travelers with a bag full of USB-C gear.
Where it falls short:
- 300W output is device-only territory
- 100W solar input
The previous-generation 2kWh EcoFlow. Still capable and expandable, but its NMC cells and 800-cycle rating are a real step below the LiFePO4 DELTA 3 that replaced it.
Best for: Only at a steep discount against the DELTA 3 Max.
Where it falls short:
- NMC — roughly 800 cycles vs 4,000 for the DELTA 3 Max
- 2-year warranty
| Spec | Anker SOLIX C300 | EcoFlow DELTA Max 2000 |
|---|---|---|
| Price | $179 | $1099 |
| Capacity | 288 Wh | 2016 Wh |
| Continuous output | 300 W | 2400 W |
| Surge output | 600 W | 3400 W |
| Battery | LiFePO4 | NMC |
| Rated cycles | 3,000 | 800 |
| Weight (lighter wins) | 8.6 lb | 48 lb |
| Max solar | 100 W | 800 W |
| Recharge time (faster wins) | 1h | 1h 48m |
Runtime head-to-head
| Appliance | Anker SOLIX C300 | EcoFlow DELTA Max 2000 |
|---|---|---|
| Refrigerator | ❌ | 28.6 hrs |
| Mini fridge | 7.8 hrs | 54.4 hrs |
| Chest freezer | ❌ | 21.4 hrs |
| CPAP machine | 6.1 hrs | 42.8 hrs |
| Sump pump | ❌ | 2.1 hrs |